Grok Constructor

Test grok patterns

This tries to parse a set of given logfile lines with a given grok regular expression (based on Oniguruma regular expressions ) and prints the matches for named patterns for each log line. You can also apply a multiline filter first.

Please enter some loglines for which you want to check a grok pattern, the grok expression that should match these, mark the pattern libraries you draw your patterns from and then press

You can also just try this out with a

random example